Modern irrigation devices, each capable of spraying 4.5 million liters of water a day, have produced a landscape dominated by geometric patterns of circular green islands of crops.

现代灌溉设备，每台的日喷水量可以达到四百五十万升，从而形成了一种像群岛一样的由几何圆形的绿色农田所构成的景观。

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Modern irrigation devices, each capable of spraying 4,5 million liters of water a day, have produced a landscape dominated by geometric patterns of circular green islands of crops.

现代灌溉设备每台的日喷水量可以达到四百五十万升，从而形成了一种像群岛一样的由几何圆形的绿色农田所构成的景观。

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A technique of spraying polyurea (SPUA) is a new technique using the special equipments and in situ spraying process.

喷涂聚脲(SPUA)技术是采用专用设备，现场喷涂工艺施工的一种新技术。

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But the F.A.O. representative in Liberia warned about spraying pesticides from airplanes because of the risk of additional water pollution.

VOA: special.2009.01.27

Opponents of spraying argue for a more patient approach.

ECONOMIST: A big new effort to repress the cocaine industry

Farmers and traffickers have largely neutralised the effects of spraying through smart countermeasures such as planting coca bushes in denser and less visible plots and cultivating new strains of coca that are resistant to the herbicide glyphosate.

ECONOMIST: Age concern

But sources on the ground said peasants are now cultivating very small fields to avoid the attention of the spraying aircraft, and many of these are too small to appear on the satellite imagery the UN based its report on.

BBC: Colombia's coca crops drop